Objective: This study explored communication about children’s origins among same-gender parent adoptive families. Background: Although this topic has been widely researched among different-gender parent adoptive families, communication about origins among those with same-gender parents, as well as sexual minority identity dynamics relevant to this crucial task, remain unexplored. Method: A sample of same-gender adoptive couples (N = 31) from Belgium, France, and Spain with children aged between 4 and 18 years (Mage = 8.9 years) participated in a semistructured interview and a graphic projective test aimed at explore their feelings and communication process about their adopted child’s birth family. Results: Inductive thematic analysis yielded a continuum of three main stances conveyed by adoptive parents regarding their child’s origins: (a) critical/minimization, (b) cautious/uncertainty, and (c) open/validation. The first (critical/minimization) was associated with experiences of sexual minority stigma and poorer communication about children’s origins and sexual minority family-related issues, while the second (cautious/uncertainty) was characterized by mixed feelings (i.e., at times open, at times critical) in communicating about origins and parents’ sexual minority experiences. The third (open/validation) was associated with positive feelings toward adoptive and sexual minority family statuses, as well as identity integration as a lesbian or gay parent and low internalized sexual stigma. Conclusion: Our findings underline the importance of sexual minority identity issues in relation to communication about children’s origins in same-gender parent adoptive families. Implications: These findings have important implications for both adoption assessment and therapeutic work with same-gender adoptive parent families.